Nastec HMA Series, Руководство по эксплуатации

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7
Control board
Analog inputs (10 or 15 Vdc):
1.
AN1: 4-20 mA
2. AN2: 4-20 mA
3. AN3: 4-20 mA / 0 - 10 Vdc (settable
by jumper C.C.)
4. AN4: 4-20 mA / 0 - 10 Vdc (settable
by C.C.)
Digital outputs:
Power source signal relay:
NO1, COM1: closed contact with AC power supply
NC1, COM1: closed contact with DC power supply
Alarm Relay:
NO2, COM2: contact closed without alarm.
NC2, COM2: contact closed with alarm or without
power supply.
Generator start / stop relay:
NO3, COM3: contact closed for generator start.
NC3, COM3: contact open for generator start.
The digital output relays are non-voltage contacts.
The maximum voltage applicable to the contacts is
250 V AC, max 5 A.
RS485 for COMBO with
device to be controlled:

S1+

S1-

G
It is recommended to
respect the polarity
linking devices.
Digital inputs:

IN1 : float or pressure switch for
pump start and stop

IN2: AC / DC switch

IN3: genset alarm

IN4 : genset lack of fuel

0V
We recommend using only no voltage
contacts.
5V power supply (max 1 A):
• 0V
• + 5V
RS485 for MODBUS:

S2+

S2-

G
It is recommended to
respect the polarity.